19918910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181081}}^1$

素因数の和:181099

約数の個数: 16

約数和(自身を含む): 39113712

約数和(自身を除く): 19194802

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 181081, 362162, 905405, 1810810, 1991891, 3983782, 9959455, 19918910]

約数ペア:

[(1, 19918910), (2, 9959455), (5, 3983782), (10, 1991891), (11, 1810810), (22, 905405), (55, 362162), (110, 181081)]